mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-21 08:03:41 +08:00
6706f1167e
* configure.in (ORIGINAL_LD_FOR_MULTILIBS): Preserve LD at script entry, and set LD to it when configuring multilibs. * configure: Rebuilt. From-SVN: r53278
146 lines
4.8 KiB
Plaintext
146 lines
4.8 KiB
Plaintext
# Process this file with autoconf to produce a configure script.
|
|
# Copyright (C) 1995, 1997, 1998, 1999, 2002 Free Software Foundation, Inc.
|
|
# Contributed by Dave Love (d.love@dl.ac.uk).
|
|
#
|
|
#This file is part of GNU Fortran.
|
|
#
|
|
#GNU Fortran is free software; you can redistribute it and/or modify
|
|
#it under the terms of the GNU General Public License as published by
|
|
#the Free Software Foundation; either version 2, or (at your option)
|
|
#any later version.
|
|
#
|
|
#GNU Fortran is distributed in the hope that it will be useful,
|
|
#but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
#GNU General Public License for more details.
|
|
#
|
|
#You should have received a copy of the GNU General Public License
|
|
#along with GNU Fortran; see the file COPYING. If not, write to
|
|
#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|
#02111-1307, USA.
|
|
|
|
AC_PREREQ(2.13)
|
|
AC_INIT(libF77/Version.c)
|
|
|
|
# This works around the fact that libtool configuration may change LD
|
|
# for this particular configuration, but some shells, instead of
|
|
# keeping the changes in LD private, export them just because LD is
|
|
# exported.
|
|
ORIGINAL_LD_FOR_MULTILIBS=$LD
|
|
|
|
AC_CANONICAL_SYSTEM
|
|
target_alias=${target_alias-$target}
|
|
AC_SUBST(target_alias)
|
|
|
|
GLIBCPP_CONFIGURE(.)
|
|
GLIBCPP_EXPORT_INSTALL_INFO
|
|
|
|
# If the language specific compiler does not exist, but the "gcc" directory
|
|
# does, we do not build anything. Note, $r is set by the top-level Makefile.
|
|
# Note that when we look for the compiler, we search both with and without
|
|
# extension to handle cross and canadian cross builds.
|
|
compiler_name=f771
|
|
rm -f skip-this-dir
|
|
AC_MSG_CHECKING(if compiler $compiler_name has been built)
|
|
AC_CACHE_VAL(g77_cv_compiler_exists,
|
|
[g77_cv_compiler_exists=yes
|
|
if test -n "$r"; then
|
|
if test -d "$r"/gcc; then
|
|
if test -f "$r"/gcc/$compiler_name \
|
|
|| test -f "$r"/gcc/$compiler_name.exe; then
|
|
true
|
|
else
|
|
g77_cv_compiler_exists=no
|
|
echo "rm -f config.cache config.log multilib.out" > skip-this-dir
|
|
fi
|
|
fi
|
|
fi
|
|
])
|
|
AC_MSG_RESULT($g77_cv_compiler_exists)
|
|
if test x$g77_cv_compiler_exists = xno
|
|
then
|
|
rm -f Makefile conftest* confdefs* core
|
|
exit 0
|
|
fi
|
|
|
|
dnl Checks for programs.
|
|
|
|
AM_PROG_LIBTOOL
|
|
|
|
dnl These should be inherited in the recursive make, but ensure they are
|
|
dnl defined:
|
|
test "$AR" || AR=ar
|
|
AC_SUBST(AR)
|
|
if test "$RANLIB"; then :
|
|
AC_SUBST(RANLIB)
|
|
else
|
|
AC_PROG_RANLIB
|
|
fi
|
|
AC_PROG_INSTALL
|
|
AC_PROG_MAKE_SET
|
|
|
|
dnl Checks for header files.
|
|
# Sanity check for the cross-compilation case:
|
|
AC_CHECK_HEADER(stdio.h,:,
|
|
[AC_MSG_ERROR([Can't find stdio.h.
|
|
You must have a usable C system for the target already installed, at least
|
|
including headers and, preferably, the library, before you can configure
|
|
the G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c',
|
|
then the target library, then build with \`LANGUAGES=f77'.])])
|
|
|
|
dnl Checks for g77 integer types built into gcc's C front end.
|
|
AC_MSG_CHECKING(for built-in g77 integer types)
|
|
AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types,
|
|
[AC_TRY_COMPILE(,
|
|
[__g77_integer g77i;
|
|
__g77_uinteger g77ui;
|
|
__g77_longint g77l;
|
|
__g77_ulongint g77ul;],
|
|
libf2c_cv_has_g77_builtin_types=yes,
|
|
libf2c_cv_has_g77_builtin_types=no)])
|
|
AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types)
|
|
if test $libf2c_cv_has_g77_builtin_types = no; then
|
|
AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
|
|
__g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using
|
|
a new enough version of gcc, or your target may not have type sizes which
|
|
accommodate those types.])
|
|
fi
|
|
|
|
# avoid confusion in case the `makefile's from the f2c distribution have
|
|
# got put here
|
|
test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
|
|
test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
|
|
test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
|
|
|
|
AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
|
|
# Do Makefile first since g2c.h depends on it and shouldn't get an
|
|
# earlier timestamp. Of course, it does when the multilib gunk below
|
|
# edits Makefile, sigh; see additional touch below.
|
|
AC_OUTPUT(Makefile g2c.h:g2c.hin,
|
|
[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
|
|
if test -n "$CONFIG_FILES"; then
|
|
LD="${ORIGINAL_LD_FOR_MULTILIBS}"
|
|
if test -n "${with_target_subdir}"; then
|
|
# FIXME: We shouldn't need to set ac_file
|
|
ac_file=Makefile
|
|
. ${toplevel_srcdir}/config-ml.in
|
|
touch g2c.h # to keep it more recent than Makefile
|
|
fi
|
|
fi],
|
|
srcdir=${srcdir}
|
|
host=${host}
|
|
target=${target}
|
|
with_target_subdir=${with_target_subdir}
|
|
with_multisubdir=${with_multisubdir}
|
|
ac_configure_args="--enable-multilib ${ac_configure_args}"
|
|
toplevel_srcdir=${toplevel_srcdir}
|
|
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
|
|
)
|
|
|
|
|
|
dnl Local Variables:
|
|
dnl comment-start: "dnl "
|
|
dnl comment-end: ""
|
|
dnl comment-start-skip: "\\bdnl\\b\\s *"
|
|
dnl End:
|